The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 25, 2018
Filed:
Mar. 04, 2014
Carl Freudenberg KG, Weinheim, DE;
Gerald Jarre, Weinheim, DE;
Birger Lange, Darmstadt, DE;
Volker Braeunling, Heppenheim, DE;
Thomas Arnold, Fuerth, DE;
Iain Smith, Watchfield, GB;
Nermina Zaplatilek, Birkenau, DE;
Stephanie Lambertz, Hirschberg, DE;
Ulrich Schneider, Darmstadt, DE;
Dominic Kramer, Frankfurt, DE;
CARL FREUDENBERG KG, Weinheim, DE;
Abstract
A ventilation insert for textiles, with at least one layer, covered at least partially by an absorption material and having ventilation openings, the openings being at least partially closeable via a liquid by swelling of the absorption material, obtainable by: a) treating a layer having ventilation openings with a mixture, containing a wetting agent, initiator, polymerizable monomer or oligomers, and a cross-linking agent, as a preliminary stage for the absorption material; and b) polymerizing the monomer or oligomer to form the absorption material while forming a bonded connection between the absorption material and the layer. The ventilation insert has a relatively low thickness, a low weight per unit area, and high flexibility permanently and independently of moisture after economical production, via one layer, self-sealingly closing ventilation openings, and containing the absorption material. The absorption material is connected to the layer by bonding, at least in some regions.